135064181 has 4 divisors (see below), whose sum is σ = 154359072. Its totient is φ = 115769292.

The previous prime is 135064159. The next prime is 135064183. The reversal of 135064181 is 181460531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135064181 - 2¹⁴ = 135047797 is a prime.

It is a super-2 number, since 2×135064181² = 36484665978401522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135064183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9647435 + ... + 9647448.

It is an arithmetic number, because the mean of its divisors is an integer number (38589768).

Almost surely, 2^135064181 is an apocalyptic number.

It is an amenable number.

135064181 is a deficient number, since it is larger than the sum of its proper divisors (19294891).

135064181 is an equidigital number, since it uses as much as digits as its factorization.

135064181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19294890.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 135064181 is about 11621.7116209274. The cubic root of 135064181 is about 513.0740659133.

The spelling of 135064181 in words is "one hundred thirty-five million, sixty-four thousand, one hundred eighty-one".